Burner.



P. A. CURTIS.

BURNER.

APPLICATION FILED MAY 7. 1908.

Patented Apr. 6, 19.09.

#7515553.- 1"; Q Q. MM.

:0., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

FREDERIG A. CURTIS, OF

CHICAGO, ILLINOIS, ASS-IGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, TOSTANDARD WICK & BURNER 00., OF CHICAGO. ILLINOIS, A ooaroarrion BURNER.

Application filed May 7, 1908.

To n/ll whom it may concern:

Be it known that I, FREDERIG A. CURTIS, a citizen of the United States,and a resident of Chicago, in'the county of Cook and State of Illinois,have invented certain new and useful Improvements in Burners, of whichthe following, when taken in connection with the drawing accom anyingand forming a part hereof, is a fu land complete descri tion sufficientto enable those skilled in t e art to which it pertains to understand,make, and use the same.

This invention relatesto burners for kerosene lamps wherein the ordinaryflat wick is used. And the object of the invention is to obtain a burnerby means of which good combustion, without smoke, and a clear whitelight may be obtained from kerosene oil.

A further object of the invention is to obtain a flame which will notflicker to any considerable extent.

A further object of the invention is to obtain a burner of the kindnamed usable on the ordinary kerosene lamps and on which an ordinarychimney may be placed.

In the drawing refrered to Figure 1 is a side elevation of a lamp burnerwith the dome thereof thrown back, showing the upper end of the wicktube and adjacent parts in vertical section. Fig. 2 is an elevation of aburner embodying this invention, viewed at right angles to Fig. 1, withthe dome in place. Fig. 3 is a vertical sectional view of an airdeflector forming an element in the device. Fig. 4 is a side elevationof the air deflector, forming an element in the device, broken away atone end to give a sectional view thereof.

A reference letter applied to designate a given art is used to indicatesuch part throug out the several figures of the drawing wherever thesame ap ears.

A is the base of the hurner embodying this invention, and is providedwith the screw threads a arranged to fit into corresponding threads onthe bowl of the lamp.

B is a wick tube secured in base A.

C is a wick raiser.

D is a wick.

E is a foraminated sub-base of the burner and is provided with springse, e, arranged.

the su base E.

G is the dome of the device, and is pro- S'pecification of LettersPatent.

Patented April 6, 1909.

Serial No. 431,398.

vided with aperture 9 9 through which a flame from wick D extends, whenthe device is in use.

II is an air deflector provided with aperture h it, through whichaperture the flame from the wick D extends, before passing through the aerture g g in dome G.

The parts 9 of apertures gg and h 71/, respectively, are above the wicktube and the arts 9 h of such apertures are on the sides of the wicktube when the dome G and the air deflector H, are in place asillustrated in Fi 2.

Air deflector H is illustrated as comprising ends I, I, and sides I, I,with part i of the ends cut out therefrom and bent up to en gage withwick tube B to hold such air deflector H in place on sub-base E.

When the air deflector II is in position on sub-base E as illustrated inFigs. 1 and 2 of the drawing it covers some of the perforationsf in suchsub-base so that air passing through these perforations flows up underthe air deflector and is deflected into the flame from the lam wick, bythe sides I, The remainder of t e perforations f are underneath the domeG and when such dome is in place on the sub-base E, as illustrated inFig. 2 of the drawing, air passing through the apertures which are notcovered by the deflector H, passes upward between the deflector H anddome G and is directed into the flame from the wick D as such flamecomes out of the aperture h h; and such flame, with the combustionproducing said flame reinforced by the additional air so suppliedthereto, passes out through aperture g g in dome G.

Portions g of a erture g g and h of aperture h h extend (fbwn, on thespherical ortion of the dome G and on the end wal s of air deflector H,to permit spreading of the flame which passes through such apertures,after such flame is above the dome and in the chimney of the lamp.

The air deflector H may be stamped or pressed out of sheet metal, orbuilt up, as

referred. Such air deflector when made as herein described is removablefrom the position thereof on the foraminated sub-base E; but itsremovability in no way aflects the action of the burner, and suchremovability is for the purpose of permitting ready cleaning thereof. Itis therefore, not essential to the operation thereof.

The device is not differently operated than an ordinary kerosene burner,but I have found a marked difference in the size and steadiness of theflame produced thereby from the flame which I have been able to obtainin any differently constructed burner.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. In a burner, the combination of ascrewthreaded base with a wick tube, a foraminated sub-base, a dome onthe sub-base arranged to cover the perforations therein, such domeprovided with an aperture for a flame, and an air deflector on thesub-base and beneath the dome, means to attach the air deflector to theends of the wick tube, such air deflector arranged to direct some of theair which flows upward through the perforations in the sub-base into theflame, such air deflector provided with an aperture for a flame, theaperture for the flame in the dome and in the air deflectorrespectively, of greater length than the width of the wick in the wicktube and the end of such apertures respectively arranged to extenddownward adjacent to the narrow edges ofthe wick tube, substantially asdescribed.

2. In a burner, the combination of a screwthreaded base with a wicktube, a foraminated sub-base, a dome on the sub-base arranged to coverthe perforations therein, the dome provided with an aperture for aflame, and a removable air deflector on the subbase and beneath thedome, arranged to direct some of the air which flows upward through theperforations in the sub-base into the flame, projections on the innerfaces of the end of the air deflector and arranged to engage with thewick tube, the air deflector provided with an aperture for a flame, andthe dome arranged to direct the remainder of the air flowing through theperforations in the sub-base into the flame; substantially as described,

FREDERIC A. CURTIS.

In the presence oi 7 CHARLES TURNER BROWN, CoRA A. ADAMS.

